2223605 has 8 divisors (see below), whose sum is σ = 2685312. Its totient is φ = 1767568.

The previous prime is 2223587. The next prime is 2223607. The reversal of 2223605 is 5063222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2223605 - 2⁶ = 2223541 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497 + ... + 2166.

It is an arithmetic number, because the mean of its divisors is an integer number (335664).

2^2223605 is an apocalyptic number.

It is an amenable number.

2223605 is a deficient number, since it is larger than the sum of its proper divisors (461707).

2223605 is a wasteful number, since it uses less digits than its factorization.

2223605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2835.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2223605 is about 1491.1757106391. The cubic root of 2223605 is about 130.5226493866.

Adding to 2223605 its reverse (5063222), we get a palindrome (7286827).

The spelling of 2223605 in words is "two million, two hundred twenty-three thousand, six hundred five".